From 9e7c73c0b9f49bc73818e08e6282a32b94d96168 Mon Sep 17 00:00:00 2001 From: Luis Chamberlain Date: Thu, 2 Mar 2023 12:28:23 -0800 Subject: [PATCH] kernel: pid_namespace: simplify sysctls with register_sysctl() register_sysctl_paths() is only required if your child (directories) have entries and pid_namespace does not. So use register_sysctl_init() instead where we don't care about the return value and use register_sysctl() where we do. Signed-off-by: Luis Chamberlain Acked-by: Jeff Xu Link: https://lore.kernel.org/r/20230302202826.776286-9-mcgrof@kernel.org --- kernel/pid_namespace.c | 3 +-- kernel/pid_sysctl.h | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 46e0d5a..b43eee0 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -314,7 +314,6 @@ static struct ctl_table pid_ns_ctl_table[] = { }, { } }; -static struct ctl_path kern_path[] = { { .procname = "kernel", }, { } }; #endif /* CONFIG_CHECKPOINT_RESTORE */ int reboot_pid_ns(struct pid_namespace *pid_ns, int cmd) @@ -473,7 +472,7 @@ static __init int pid_namespaces_init(void) pid_ns_cachep = KMEM_CACHE(pid_namespace, SLAB_PANIC | SLAB_ACCOUNT); #ifdef CONFIG_CHECKPOINT_RESTORE - register_sysctl_paths(kern_path, pid_ns_ctl_table); + register_sysctl_init("kernel", pid_ns_ctl_table); #endif register_pid_ns_sysctl_table_vm(); diff --git a/kernel/pid_sysctl.h b/kernel/pid_sysctl.h index e22d072..d67a4d4 100644 --- a/kernel/pid_sysctl.h +++ b/kernel/pid_sysctl.h @@ -46,10 +46,9 @@ static struct ctl_table pid_ns_ctl_table_vm[] = { }, { } }; -static struct ctl_path vm_path[] = { { .procname = "vm", }, { } }; static inline void register_pid_ns_sysctl_table_vm(void) { - register_sysctl_paths(vm_path, pid_ns_ctl_table_vm); + register_sysctl("vm", pid_ns_ctl_table_vm); } #else static inline void initialize_memfd_noexec_scope(struct pid_namespace *ns) {} -- 2.7.4